3/16" x 30" Straight Stainless Brake Line

Improve braking performance and reliability with the 4LifetimeLines® 3/16″ × 30″ Straight Stainless-Steel Brake Line. Crafted from marine-grade 316L stainless steel, this 30-inch line resists rust, corrosion, and brake-fluid vapors, ensuring decades of leak-free service even in harsh climates.

Each end arrives double-flared and fitted with SAE nuts and caps to meet or exceed DOT FMVSS 106 standards, so you get a secure, factory-quality connection without on-site flaring tools. The straight-through design allows for precise routing in tight engine bays or custom chassis layouts, saving you time and eliminating guesswork.

Whether you’re restoring a classic car, upgrading a performance build, or replacing a worn OEM line, this pre-cut, pre-flared brake line installs in minutes. Simply deburr the cut end if shortening is needed, thread onto your existing unions or adapters, bleed the system, and experience crisp, corrosion-proof stopping power—mile after mile.